Cyclic dipeptides exhibit potency for scavenging radicals
摘要:
Twenty kinds of cyclic dipeptides containing L-leucine were synthesized, and their antioxidant activity against (OH)-O-center dot and O-2(center dot-) was investigated. Compounds possessing polar amino acid residues, such as Asp, Cys, Glu, Lys, Pro, Ser, and Trp, exhibited higher antioxidant activity against (OH)-O-center dot than vitamin E. However, only cyclo(L-Cys-L-Leu) scavenged O-2(center dot-). (C) 2012 Elsevier Ltd. All rights reserved.
Twenty kinds of cyclic dipeptides containing L-leucine were synthesized, and their antioxidant activity against (OH)-O-center dot and O-2(center dot-) was investigated. Compounds possessing polar amino acid residues, such as Asp, Cys, Glu, Lys, Pro, Ser, and Trp, exhibited higher antioxidant activity against (OH)-O-center dot than vitamin E. However, only cyclo(L-Cys-L-Leu) scavenged O-2(center dot-). (C) 2012 Elsevier Ltd. All rights reserved.
Solvent‐Induced Helical Assembly and Reversible Chiroptical Switching of Chiral Cyclic‐Dipeptide‐Functionalized Naphthalenediimides
作者:Shivaprasad Manchineella、V. Prathyusha、U. Deva Priyakumar、T. Govindaraju
DOI:10.1002/chem.201303123
日期:2013.12.2
roles of various parameters in orchestrating the preferential chiral molecular organization in supramolecular self‐assembly processes is of great significance in designing novel molecular functional systems. Cyclicdipeptide (CDP) chiral auxiliary‐functionalizednaphthalenediimides (NCDPs 1–6) have been prepared and their chiral self‐assembly properties have been investigated. Detailed photophysical and